Nut-making machine.



J. R. KREISER.

NUT MAKING MACHINE.

' APPLIOATION FILED JULY 3, 1913. 1, 1 00,89 1 Patented June 23, 1914.

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'J. R. KREISER.

NUT MAKING MACHINE.

APPLIOATION FILED JULY 3, 1913.

1 1 06, 89 1 Patented June 23, 19M

9 SHEETSSHEET 2.

gmuewto c mam 3 6a J. R. KREISER. NUT MAKING MACHINE. APPLICATION FILED JULY 1913.

Patented June 23, 1914.,

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J. R. KREISER. NUT MAKING MACHINE. APPLICATION FILBD'JULY s, 1913.

Patented June 23, 191

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NUT MAKING MACHINE. APPLICATION FILED JULY 3,1913.

mamo 9 SHEETS-SHEET 7. i 11%..QILQ ll smilg 6a (L 7 76 7 7 2 \%75 a \S 4 019 l mi z 67 Patented. June 23, 1914.

J. R. KREISER.

NUT MAKING MACHINE. APPLICATION FILED JULYS, 1913.

Patented June 23, 1914 9 SHBETS SHEET 9.

cfofeizfiffz ezaer JOHN R. KREISER, F LEBANON, PENNSYLVANI- NUT-MAKING- MACHINE.

Specification of Letters Patent.

Patented June 23, 1914.

Application filed JulyB, 1913. Serial No. 777,328.

To all whom it mat fp oncern:

Be it known that. 1, JOHN R. KREISER, a

citizen of the United States, residing at Lebanon, in the county of Lebanon and State of Pennsylvania, have invented certain new and useful Improvements in NutMaking a double-punch drive; and the object of the same is to produce a simple and efiicient machine (adjustable in all important parts) for rapidly turning out nuts of various sizes and shapes, with OI'- without the finishing op eration of crowning and shaping.

This object is carried out by constructing the machine in the manner hereinafter more .a plan View of the machine complete, and -Fig. 7 is a similar view with parts in horizontal section. Fig. 8 is a vertical sectional detail through the punch, taken on about the line 8-8 of'Fig..7. Figs. 9 and are perspective details of the forked and the blocking dies. Fig. 11 is a plan view of the blank [from which the nuts are to be made. Figs.

.12, 13, and 14.- are longitudinal vertical s'ec tionsv through the rear or finishing portion of the machine, showing the parts in various positions; and Fig. is an enlarged section showing the carrier in the act of picking up a nut inorder to take it to the crowning mechanism. Fig. 16 is a section on the line 1616 of Fig.--l5, and Fig. 17 is a hori zontal section on the line 17l7 of Fig. 15. Figs. 18 and 19 are vertical; sections on the 7 lines 18.18 and 19- 19 respectively of Fig.

12. Figs. 20, 21, and-22 are vertical sections on the line --20, zl-21 and QQ QQ respectively of. Fig. 6. Fig. 23 is a fragmentary section, similar to that shown in Fig. 7, giving a slight modification; and Fig. 2-,: is a section on the line 24-24 of Fig. Fig. is a plan view of the blank from which the nuts are made by this modification.

In the embodiment of my machine illustrated in the accompanying drawings, legs 1 support a table 2 which may well be called the bed; of the machine, and on the same in suitable bearings are mounted a power shaft 3 across one end and a driven shaft 4: across the other, the former having fast and, loose pulleys 5 of any suitable means for connecting it with a source of power, and the two shafts being connected by intermeshing gears 6 and 6 whereof the former-has three times the number of teeth of the latter. The bed or table is'of proper construction and sufficient strength. to withstand the strain which is to be thrown upon it, and contains proper guides for the parts yet to be described; and across its center is removably xed a web or block 7 pierced with openings for a purpose which will appear, as best seen in Figs. 6, 7, and 12. To the right of this web the bed carries a male die head (see Fig. 8) designated as a whole by the reference numeral 10, and the same is connected by a pitman 11 with a crank 12 on the driven shaft 4. To the left of said web the bed carries a car ier head 13 which is connected by a pitman 4 with a crank 15 on the power shaft 3, and from the relative size of the gears 6 and 7 it follows that the carrier head will reciprocate toward and from the web 7 threetimes as fast as the die head.

The'f'eed mechanism for the stock S (which.

latter consist ,of a strap of metal as usual) is shown in the present embodiment of my invention as embracing two roughened or milled wheels 20 and 21 mounted fast on upright shafts which are connected at their lower eiids by gears 22, one shaft being journalcd in a fixed bearing 23 and the dther in a movable bearing 24 which is pivotc'd lat 25 within a casing 26 and pressed normally inward by means of a spring 27 rendered adjustable by'a set screw 2Sscc Figs. 3, 4 and at. is a cam 99 acting on a lever which is On the rear end of the driven shaft I pivoted at 31, and the lower end of this le ver connects with a slide 32 moving through a suitable guide in the bed and carrying at its inner end a pivoted pawl 33 whose nose or active end is thrown into engagement with a ratchet wheel 34 on the shaft of one of the feed rollers. by means of a spring 35; so that every time the shaft t revolves said cam communicates an impulse to the the lower @116 2 indie.

110 mmsaiml 0 the Wi th W 1 mew min 1) the and if Hm 1m 10 y mu At each forward impulse of said head one die 57 notches the stock, a second die or punch 50 punches a hole in it, and the third die 58 cuts off a blocked nut and projects it into an outlet passage 69 in the web 7. If no further mechanism be'provided, these roughly formed nuts will accumulate along the length of this passage as seen in Figs. 7 and 15, and will eventually drop out the rear end thereof behind the web 7 .in a manner. which will be clear, while the waste material will drop out the openings 66, 67, and 68. But in order to produce a finely finished or crowned nut, I prefer to additionally treat the rough blank thus formed, and hence I make use of the following mechanism: Channeled guides 70 are disposed within the passage 69, having transverse pins '71 at their forward ends on which they are pivoted in sockets '72 within the web 7, and having their rearward ends pressed normally toward each other by springs 73; and the inner faces of these guides will by preferenceapproximate the shape of the nuts, with the result that the finished nuts pushed through said passage by the blocking die'58 will travel slowly along the length of said guides as best seen in 15. The crowning die 74 is preferably held by means of a set screw 75 in a recess 76 within the web 7 above said passage 69, as also shown in this view. Beneath the passage-69 is an outlet passage 77, preferably inclined slightly as shown, and at the inlet end of. this passage is the finishing die 78 which gives the final con- 5 p1ck-up pin 105 which projects axially tour to the nut after it has been; somewhat flattened out in the act of crowning by the die 74, as well understood by those familiar with this art. The male finishing die 79 is of a size and shape to fit closely within the female finishing die 78, but is smaller than the crowning die 7 1; and, this male' finishing die has another function next to be explained.

Suitably guided within the head 13, as by being made triangular as seen in Fig. 7 is an upright block or carrier 80 in a recess or socket in whose face the male finishing die 7 9 is mounted by suitable means, preferably those employed elsewhere as above described, as shown in Fig. 14. This block partakes of the horizontal reciprocations of the carrier head 13, in addition to which it has a vertical movement of its own produced by the' following instrumentalities: Formed'in the lower end of said block is 'a. groove '81 in which works a crank pin 82 (preferably having a roller) at the outer end of a crank arm 83 which is mounted on .a rock shaft 84 1ournaled across the frame -or .bed; and at one side of the'latter this i shaft carries an upstanding arm 85 slottedas at 86 for the reception of a bearing 87 which is adjustable therein by means of I normal conditions. 87 within the slot 86 of the arm 85 increases OI decreases the throw or movement of the carrier 80, under the impulse of the action set screw 88. Said bearing forms the pivot at one end of a connecting bar 89 between the arm 85 and a rocking lever 90 pivoted at 91 to the bed or frame near the other end of. the same, and having a roller 92 at its upper end. Fast on the driven shaft 4 Qwhich it will be remembered rotates oneth1rd as rapidly as the power shaft 3) is a cam 93 having three faces 94, 95, and 96 which are respectively low, medium,.and high. Finally a spring 97 moves the lever 90 and with it the other parts in a direction to normally cause the descent of the block or carrier 80, so that the roller 92 is'held in contact with the cam faces under Setting of the bearing of the various cam faces on the roller 92.

A throw-ofi is provided by means of a toothed sector 10% fast on the shaft 84:, its ;teeth 162 being engaged by a dog 98 pivoted at 103 and having a handle 99. The latter When raised is held by a clip or stop 100 of any suitable construction, whereas when it is dropped to the dotted position shown in Fig.

3 it rests on another stop or hook 101. When "the dog 98 engages the teeth 102 the carrier .80 may be raised by the highest face 96 of .the cam 93, but it will remain raised and the cam will revolve idly so that the carrier will no longer descend until the handle 99 is again raised into engagement with the stop or clip L30.

The carrier mechanism also includes a through the male finishing die 79 and be yond its active face, this pin being of a size to fit with some friction in the bore of the nut formed and being pressed to the rear step by step through the passage 69, although the friction is not as great as that imparted to the finished nut by the female finishing or shaping die 78 in Fig. 15. The operation of this portion, which is the finishin'g me anism, of the machine is as follows: With the parts standing as seen in Fig. 13, the action of the crank 15-on the power shaft 3 moves the; carrier head forward until the pin 105 ente s the rearmost of the group of nuts within the passage 69. (See Fig. 15.) Fitting the aperture through the nut with some friction, when the crank retracts the head 13 this nut is withdrawn from bet-ween the spring-pressed channeled guides 70 and by the pin 105 is carried away from the group referred to. The cam face 96 'ow comes into action and raises the carrier 80 to its highest position as seen in Fig. 14, where the finishing die 79 is opposite the crowning die 74. The next impulse of the' crank 15 throws the parts forward as shown in this view so that the upper side of the nut is crowned in the concave die-block 74,

strain espe the hi0 face 9st comes into action so that the carrier block drops to the position shgwn in Fig. 12; and when'the crank shaft other half revolution the carrier block 80 advances so that the out which has been' crowned and slightly enlarged is forced through the female finishing die 78, as seen in this View, the surplus being sheared or stripped from the eniorgcd nut, and the finished mit runs down the outlet posse e 77 and drops into a suitable receptacle.- rem this 'description'it will be obvious the, the female finishing die 78 most grip the not with greater friction than the pick-up pin 105,'said pin must fit the bore ofthe rearinost nut in the passage 69 with a greater degree of friction than. imparted to said not by the spring-pressed goides 70, and the latter must bear upon the group of nuts in thisyassage with gentle but sufficient force to old theintiierein as seen in Fig 15 'endto permit them to be pushed along step by step eachtiine :1 new not is projected into the ii1-- let end of:tl1iopossage by thebloeking die 58, making the notches N in the stock S may not enlarge the letter, but it is quite possible that the action of the punching die 50 in making the hole will either enlarge or'slightiy dietort the portly finished not as shown in ii 11; and this accounts for'myose of o ht nail bl. citing; die 58 to foit'ee ti pi: hlaiili; the die (53, ri'ithe any other shape "rich "Wouh: intothe goo.

- In the moo 2st and Elli, M i ing equiiro Iii.

die 5'? is ittod h tied ilt obvious throughout moot he rep shape to llt roneoothe i1 oft-er they i ombie rew Wear or i CULlI'SL',

ing die 78. who a they,

imiiot he of ing port Working; v manner, hm these the present in ehihoretcd h Doe dotoir "i makes an",

'The action of the forked die 57 in.

m L he Wise to mention at this time and I coil especial. reference to it, 7", i2 and I have said ohove that the web 'i' is; removably fixed tcross the bed or table of the machine, and this I consider adviouhle he cause as this .web is subject to such great strains it sometimes becomes era cited. or shattered and must he removed and replaced by :1 new one. In order to render it quickly removable, without much loss of time While the machine stands idle, I lie the table l t-shaped in ion. View am there 'WiitLJiCH intersects the side i.

the cross zirm '31UV1d8 the ii iiices oi: the .hiiimz' w i l recesses having one square end if end one beveled end 2 and the "ii eh or block 7 is: dropped. into the recesses :is o .1! in Fig. 6] and rests on the cross own 9; are in liigiii, or it can-ho iifted out by i'heons of aring or eye-bolt Y with which its upper end is provided. In order to hold this Web or block rigidly and fixedly in position, wedges if lire inserted" adjacent the beveled ends 2 of the recesses, and these wedges ore drown tight into place by screws '2' or otherwise. If i the web --should become orsiched or shattered, the screws are loosened and the wedges retrieved, and then :1 block and tackle is brought into play mid engaged with, the ring or eye-holt 7" and the entire web iiited oiit o "i he quickly Ma and position ii clear. invenii i 1 l mit prom M t 31131-14] mdi rial of 0 C" t guides ot 1 L, o ipoeitita face of) hood, :md. enrry' lg f the wit-blanks: to iiieohiin mi euiistilntially no the eluss described,

the bed having;

iis

veying the nut-blanks into position tobe acted on by said dies.

3. In a machine of the class described, the combination with the bed having a transverse fixed web provided with passages, guides at opposite sides of said web, heads reciprocating in said guides, stock-feeding mechanism, and blocking mechanism carried by one of said heads for acting on the stock to produce nutblanks and deliver the same through oneof said passages in the web;

of a finishing die inset into'the opposite face of said web, the latter having an inclined outlet passage leading from said die, a male die coaeting with said finishing die, .a pickup pin extending axially through said male die. and means for projecting and retracting and for raising, and lowering said male die, for the purpose set forth. I

4. In a' machine of the class described, the combination with the bed having a transverse fixed web pierced with passages extending longitudinal of the bed,lguides at opposite sides of said web, heads reciprocating in said guides, stock-feeding mecha' nism, and blocking mechanism carried by one ofsaid heads for acting on the stock to produce nut-blanks and deliver the same through one of said passages in the web; of a crowning die inset into the opposite face of said web above such passage, a fe male finishing die inset in saidface below said passage, the web having an inclined outlet passage from this die, a male finishing die, a pick-up pin projecting axially beyond its active end, and means for moving this die vertically and for projecting and retracting it, for the purpose set forth.

5. Ina machine of the class described, the combination with a web having a passage through it, and means for feeding nutblanks step by step through said passage; of a crowning die in said web above such passage, a female finishing die inset in the web below said passage,'the web having an inclined outlet leading from this die, a male finishing die, a pick-up pin projecting axially beyond its active end, and means for moving thisdie vertically and'for projecting and retractingit, for the purpose set forth.

6. In a machine of the class described, the

combination with a web having a passage through it, and means for feeding nutblanks step by step through said passage; of a finishing die in said web, the latter having an inclined outlet passage leading from said die, a male die coacting with said finishing die, a pickup pin extending aXithrough it, channeled guides within said passage pivotally mounted at the inlet end thereof, springs normally pressing their opposite ends toward each other, and means;

for feeding nut-blanks through the passage between said guides; of a female die carried by said web and having an opening adapted to closely embrace a nut-blank, a male die adapted to coact with said die to finish the nut, a pick-up pin projecting beyond the active end of the male die and adapted to enter the hole in said nut-blank with greater friction than that generated by said grip ping means, and means for moving the male 8. In a machine of the class described, the combination with a fixed web having a passage-therethrough, means for feeding nutblanks threugh said passage, and means for yieldingly gripping the blanks Within such passage; of a female die carried by said web and having an opening adapted to closely embrace a nut-blank, a male die adapted to coact with said die to finish the nut, a pickup pin projecting beyond the active end of the male die and adapted to enter the hole in said nut-blank with greater friction than that generated by said gripping means, and means for moving the male die.

9. In a machine of the class described, the combination with a fixed member having two passages therethrongh, means for feeding nut-blanks through one passage, and means for yieldingly gripping the blanks therein; of a die at the inlet end of the sec- 0nd passage having an opening adapted to closely embrace a nut-blank, a male die adapted to coact with said die to finish the nut, a pick-up pin projecting beyond the active end of the male .die and adapted to enter the hole in said nut-blank with greater friction-than that generated by said gripping means. a head reciprocating with respect to said member, an upright block movably mounted in said head and carrying the male die, and means for raising and lowering said block between the reciprocations of said head, for the purpose set forth.

10. 'In a machine of the class described, the combination with a fixed web having a passage therethrough, means for feeding nut blanks through said passage, means for yieldingly gripping the blanks therein, there being a second passage through the web, and a die at its inlet end having an opening adapted to closely embrace a nutblank; of a male die adapted to coact with said die tofinish the nut, a pick-up pin projecting beyond the active end of the male die and adapted to enter the'holc in said nutblank with greater friction n that gen-- erated by said gripping means, a head reciprocating with respect to said ,web, a die carrying block movably mounted in said head, said block being provided with a horimind p: ssuge M; mm mania and (natal. pas- 7 black, n. w lam-wing in smps' m 11 W so ely int-0 11m. M: w horizon finishing die. w :ifw machines mmlbinafion with aft having a crank i001; m "1 an up- 15mm, mmnina for minmtween. 1W7 mm" fau t.

' wm'mnw 1 ms mm W] H1 111111111 l. Minding 111ml: md having a (10g 011 intm enlmvlzhws on will, 11. 15 a crank m. up-

Q \Wdg'es remcmbly in place, the block ring [he openmgs 1n 1t; of shafts across e ends of Zhe table, and (hes actuated 'iofn 1mm. of & pane forwas-d )i mny wnsreof I have hereunto set lung} in presancg of two subscnblng wlt- JOHN R. KREISER.

s v 1 .141 c, puma; 

